""ET TROJAN Suspected Malicious JS Loader Activity (GET)""

SID: 2049263

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_11_20, deployment Perimeter, deployment SSLDecrypt, performance_impact Moderate, confidence Medium, signature_severity Major, updated_at 2023_11_20

Reference:

  • md5

  • 93419e7818759ebd01e65a84f4c6535d

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest.5)|0d 0a|"

  • Value: !"Referer"

Within:

PCRE: "/^\/[a-z]{8,12}$/U"

Special Options:

  • http_method

  • http_header

  • http_header

source